A hatch lock cover includes inner and outer flanges, with a keeper and a handle positioned between the flanges. The handle is rotatable with respect to the flanges to move a batten bar contacting surface into and out of engagement with a batten bar or a hatch cover tab of a hatch cover. A downwardly extending portion of an arm of the keeper may define an aperture and/or include a projection for securing an adjustment plate or extension piece to the arm to provide an alternative batten bar contacting surface. Alternatively, a mounting bracket may be provided to secure the hatch cover lock to a railcar, with the mounting bracket accommodating the hatch cover lock in different positions having different elevations. Such configurations allow the hatch cover lock to be adjusted for use with a batten bar or hatch cover tab having a gasket that has become worn out.

A fluid-driven hatch for a bulk material container includes a cover is opened by a fluid-driven cover actuator and secured by a fluid-driven lock actuator. A fluid conduit connects both the fluid-driven cover actuator and the fluid-driven lock actuator to a pressurized fluid source. Pressurized fluid is selectively supplied to the fluid conduit such that the fluid-driven lock actuator is actuated at a first pressure to unlock the cover, and the fluid-driven cover actuator is actuated moments later at a second, higher pressure to open the cover.

A fluid-driven hatch for a bulk material container includes a cover is opened by a fluid-driven cover actuator and secured by a fluid-driven lock actuator. A fluid conduit connects both the fluid-driven cover actuator and the fluid-driven lock actuator to a pressurized fluid source. Pressurized fluid is selectively supplied to the fluid conduit such that the fluid-driven lock actuator is actuated at a first pressure to unlock the cover, and the fluid-driven cover actuator is actuated moments later at a second, higher pressure to open the cover.

A door lock system and method includes a first latch member defining a threaded aperture and configured for attachment to a first door member, a second latch member having a slot and configured for attachment to a second door member, and a clamp member having an elongate shaft, a flange attached to a first end of the shaft, and a threaded, second end configured to be screwed into the threaded aperture; one end of the shaft defines a tool aperture. An end region adjacent the first end of the shaft is configured to be disposed through the slot. When a tool is used to rotate the shaft relative to the threaded aperture to move the flange towards the second latch member, the flange comes into abutment with the second latch member to connect the shaft and latch members together for securing the door members.

A trailer door system that comprises at least one trailer door assembly operably engaged with the trailer; and at least one driving assembly operably engaged with the trailer and the at least one trailer door assembly. The at least one driving assembly further comprises an expansion assembly operably engaged with the at least one trailer door assembly. The at least one driving assembly further comprises a rotary actuator operably engaged with the expansion assembly, wherein the rotary actuator is configured to transition the expansion assembly between a collapsed position and an expanded position for pivoting the at least one trailer door assembly between a closed position and an opened position about an axis parallel to a vertical axis defined by the trailer. A trailer monitoring system may be included with the trailer door system for automating the state of the trailer during a towing operation.

A trailer door system that comprises at least one trailer door assembly operably engaged with the trailer; and at least one driving assembly operably engaged with the trailer and the at least one trailer door assembly. The at least one driving assembly further comprises an expansion assembly operably engaged with the at least one trailer door assembly. The at least one driving assembly further comprises a rotary actuator operably engaged with the expansion assembly, wherein the rotary actuator is configured to transition the expansion assembly between a collapsed position and an expanded position for pivoting the at least one trailer door assembly between a closed position and an opened position about an axis parallel to a vertical axis defined by the trailer. A trailer monitoring system may be included with the trailer door system for automating the state of the trailer during a towing operation.

A vehicle equipment seal device includes a main body portion, a bolt portion, a metal wire connection portion and a lock structure. The main body portion has a connection surface. The bolt portion is inserted into the main body portion. The metal wire connection portion has one end fixed on the connection surface of the main body portion, and the other end provided with the bolt portion. The lock structure is arranged in the main body portion, wherein the lock structure includes a motor and a sensor, and the sensor is used to position a turning position of the motor, thereby determining whether the lock structure locks the bolt portion or unlocks the bolt portion.

A vehicle equipment seal device includes a main body portion, a bolt portion, a metal wire connection portion and a lock structure. The main body portion has a connection surface. The bolt portion is inserted into the main body portion. The metal wire connection portion has one end fixed on the connection surface of the main body portion, and the other end provided with the bolt portion. The lock structure is arranged in the main body portion, wherein the lock structure includes a motor and a sensor, and the sensor is used to position a turning position of the motor, thereby determining whether the lock structure locks the bolt portion or unlocks the bolt portion.

A locking system for locking of an enclosure that is provided with at least one and preferably two doors or gates is provided. The locking system comprising a lock holding device with a bent piece for mounting of a locking rod behind the door and a blocking element and a lock.

A locking system for locking of an enclosure that is provided with at least one and preferably two doors or gates is provided. The locking system comprising a lock holding device with a bent piece for mounting of a locking rod behind the door and a blocking element and a lock.